• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Help with R values

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Burnedfingers

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Joined 2002
Does anyone have simulator software in which to check the R values for Joel's preamp? I am trying to use a power supply voltage of 245volts. I have checked all connections, parts placement, and so forth. Nothing is missing or misplaced. I don't have the formulas in which to check the calculations myself. I just can't seem to get the correct voltages/bias on the tubes. When I do it doesn't seem to have any gain at all. Any help would be appreciated.


Joe
 
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